Tim Dawson

Surface rupture photo from Chinese colleagues for the Mw7 normal fault earthquake that occurred on October 23rd.

This week I attended a SCEC sponsored workshop and field trip to look at faults in the Truckee area co-led by @faultcreeper.bsky.social Here are a couple of images of the Polaris fault including an impressive offset terrace riser along the Truckee River and a linear swale/closed depression.

This sums it all up.

Today at 10:15am!

A M7.7 earthquake just struck southern Panama - the largest on-land earthquake the country has experienced in recorded history. What do we know, why did it occur, and what can we expect? ⚒️ 🧪 earthquakeinsights.substack.com/p/m77-earthq...

"Cat's in the Cradle" was a cautionary tale, not an instruction manual.

🔔 NEW FACTSHEETS! 1) Flood and debris flows after wildfire: Information for the public 2) Inundaciones y flujos de escombros después de un incendio forestal: Información para el público 3) Geohazards following wildfire: Information for emergency management www.conservation.ca.gov/cgs/bwg/reso...

The wind must have shifted and blown some of the wildfire smoke to the south in Yosemite, because it was much clearer driving back on Hwy 120 than it was on Thurs.

Good moonrise tonight.

In my latest for @earthscope.org, I dug into how fiber optic cables can help us better understand flash floods in the SW US. DAS may not be ready for flood early warning, but it can help define thresholds for the switch from infiltration to overland flow. ⚒️🧪 ngf.earthscope.org/news/from-ra...

Happy #Caturday!

👇👇👇👇

Welcome to San Francisco! 0️⃣ mountain lion-free days. www.sfchronicle.com/bayarea/arti...

True story.

Again time for real headlines “Trump blackmails nation into saving Kennedy Center after sabotaging Kennedy Center”.

Maybe a better headline is: “Gross mismanagement by Trump appointees shutter Kennedy Center”

As a homeowner, my investment in a $30 plumbing auger/snake has once again saved me from an expensive plumber house call. It is messy, frustrating at times, but a good return on investment. Highly recommended if you have the inclination to fight these home repair battles.

Congrats to Texas football for a big win and comeback against OSU tonight. At least half of this household had a good college football Saturday.

A StoryMap summarizing much of what is known about the Nepal landslide/glacial-collapse and subsequent flooding was put together by the Center for Land Surface Hazards. storymaps.arcgis.com/stories/f2b2...

Currently practicing for the post-earthquake water outages because the water main on our street broke and we are without water. Imagine this scaled up by multiple orders of magnitude due to an earthquake. Hmmm, when was the last time I changed out our emergency water? Oh no…

Biden checks his watch at a ceremony and Fox does nonstop segments on it for weeks. But Trump falls asleep repeatedly at the 9/11 ceremony and they won’t even show it. But national broadcast news networks won’t show it either because that would be impolite.

Happy California Admission Day! On September 9, 1850, California became the 31st state, just two years after a discovery that changed everything: gold. The rush that followed grew California's population from under 1,000 people to nearly 100,000 in less than two years. 🧪 ⚒️

NSF is consolidating its geoscience research grants into a new program, GEOcore and reducing annual grants to $110 million total in 200-350 awards. Typical was about $300 million in 1,200 awards. Not including institutional grants ($1.3 billion/yr) and those may be gone. www.nsf.gov/funding/oppo...

As usual, I’m grossed out by the capitulation of corporate America to someone who continues to abuse the power of their elected office.

Raccoon rush hour this morning.

Somebody take the iPhone away from senile grandpa and give him the jitterbug to mash those buttons

If you care about Earth science in the US, please sign up for the NSF GEO virtual office hour Sept 15 with GEO directorate head Joydip Kundu! NSF leadership needs to hear directly that people care and are concerned about GEO. Maxxing out their Zoom tier sends a message. www.nsf.gov/events/nsf-g...

Not your everyday text alert in San Francisco for our neighborhood. Loose mountain lion!

Pumpkin Spice has broken containment.

Good sunset hitting clouds looking east tonight.

Gift article: Visual Analysis Points to Bedrock as Likely Cause for Nepal’s Flash Floods www.nytimes.com/interactive/...

I had a fantastic view of the Blackhawk Landslide in Lucerne Valley while leaving Palm Springs. PSP-SFO always has some of the best views from the air. The AGU Landslide blog had a nice post about the slide a while back: blogs.agu.org/landslideblo...

In memory of Dolly Parton, the Giants are currently losing 9-5 to AZ.

As much as I love watching the Giants on tv when we can get a game, this one is not been one I think I can keep on. From the first pitch it has been bad.

Truly, we live in the golden age of idiocracy.

Good evening cloud action.

It was lovely to work on this article with @meghansmiller.bsky.social and @ahusker.bsky.social. Hopefully it will help answer some of the ongoing questions about the recent destructive earthquakes. theconversation.com/are-earthqua...

Johnny Cash was definitely a larger than life figure.

Some good evening sunset action with sky, clouds, fog, and the moon.

A bucket list destination for me.

This hawk was hanging out in the backyard and I had enough time to grab my camera for some photos.

Wishing my feline bestie @palmercatsf.bsky.social very happy 16th birthday!

This captures me in a supporting role doing what I like to do most: Sitting in a ditch with colleagues pondering the stories recorded in dirt.